LG LFX21975ST/02 refrigerator Parts

A bottom leak on an LG LFX21975ST refrigerator is usually caused by a clogged or frozen defrost drain, a loose water line connection, or a problem in the dispenser or ice maker water supply. Start by checking for ice or debris in the drain area and inspecting the tubing and fittings.

• Defrost drain clogged or frozen: Water from normal defrosting can’t reach the drain pan and ends up on the floor.
• Water line or fitting leaking: A small drip from the supply line can run down and pool at the bottom.
• Water filter not seated or overdue: A mis-seated filter can cause leaks at the filter head.
• Inlet valve seeping: A failing valve can drip into lines or components even when not dispensing.
• Door not sealing well: Warm air intrusion increases frost and defrost water, which can overwhelm a partially restricted drain.

1. Unplug the refrigerator and pull it out enough to inspect behind and underneath.
2. Check for a sheet of ice on the freezer floor or water under the crisper drawers (classic drain issue).
3. Inspect the water supply path:
   • Look for wetness at the back where the house water line connects.
   • Follow the tubing to the cabinet and look for drips at joints.
4. Check the filter area and reseat the filter; replace it if it’s past its service life.
5. Confirm doors close and seal; clean the gasket and make sure bins and food aren’t preventing closure.

A small leak can quickly turn into floor damage and can also point to airflow or defrost issues that reduce cooling performance. Fixing the root cause (especially a restricted drain or seeping valve) helps prevent repeat puddles.

Use the LFX21975ST owner’s manual for care, cleaning, and water filter replacement guidance.

Last updated: January 2026

The most common problems we see with LG refrigerators like model LFX21975ST are cooling issues (warm fridge or freezer), ice maker and water dispenser problems, and water leaks. Many of these trace back to airflow, defrost, or water-supply components and can be diagnosed with a few quick checks.

• Not cooling well or temperature swings: restricted airflow, dirty condenser area, evaporator fan issue, or a defrost problem.
• Ice maker not making ice or slow ice: water supply restriction, filter overdue, or inlet valve issue.
• Water dispenser slow or not dispensing: clogged filter, air in the line, kinked tubing.
• Water puddles under the refrigerator: a clogged/iced drain path or drain tube issue.
• Door alarm beeping or interior light problems: door not sealing, door switch not closing reliably.

1. Confirm settings and allow 24 hours after any adjustment for temperatures to stabilize (details are in the LFX21975ST owner's manual).
2. Make sure doors close fully and gaskets seal all the way around.
3. If water or ice is weak, replace the filter and reset the filter indicator (the manual describes holding the LIGHT/FILTER button for more than 3 seconds).
4. Look for frost buildup on the back wall inside the freezer; heavy frost often points to a defrost or airflow problem.
5. If you see water under the unit, inspect the drain path and drain tube.

Catching these symptoms early helps prevent food spoilage, reduces ice buildup, and avoids water damage. On a French door bottom-mount refrigerator, airflow and defrost performance are especially important for stable temperatures.

Last updated: January 2026

Pricing for LG refrigerator leveling legs on model LFX21975ST depends on the exact leg or foot style used on your unit and whether LG sells it as an individual service part or as part of a larger assembly. Use the parts diagram in the LFX21975ST owner's manual to identify the correct item before pricing.

On LG refrigerators, “legs” usually means the front leveling legs used to level the cabinet and help doors close properly. To price the right part, we match the exact callout from the diagram.

• Find the model and serial tag inside the fresh food section
• Use the exploded-view diagram to locate the leveling leg/foot callout
• Confirm position (left vs. right, front vs. rear)
• Check whether the diagram lists a leg, a roller/foot, or a base grille assembly
• Price the exact part number shown for your callout

A worn or stripped leveling leg can make the refrigerator rock, increase vibration noise, and prevent doors from sealing and closing correctly. The manual’s leveling instructions also explain the correct front-to-back tilt for reliable door closing.

Last updated: January 2026